CN204119086U - A kind of self adaptation piezoelectric generating device - Google Patents
A kind of self adaptation piezoelectric generating device Download PDFInfo
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- CN204119086U CN204119086U CN201420583954.5U CN201420583954U CN204119086U CN 204119086 U CN204119086 U CN 204119086U CN 201420583954 U CN201420583954 U CN 201420583954U CN 204119086 U CN204119086 U CN 204119086U
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- piezoelectric
- piezoelectric vibrator
- pedestal
- generating device
- self adaptation
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- 230000006978 adaptation Effects 0.000 title claims description 11
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 20
- 239000000463 material Substances 0.000 claims description 7
- 238000010248 power generation Methods 0.000 abstract description 4
- 230000003044 adaptive effect Effects 0.000 abstract 1
- 230000005611 electricity Effects 0.000 description 3
- 239000000919 ceramic Substances 0.000 description 2
- 230000005284 excitation Effects 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
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- General Electrical Machinery Utilizing Piezoelectricity, Electrostriction Or Magnetostriction (AREA)
Abstract
本实用新型涉及一种自适应压电发电装置，包括：压电振子、基座、弹簧和滑动质量块，其中：所述压电振子一端固定在基座上；所述弹簧环绕压电振子布置，一端与基座连接，另一端与滑动质量块连接；所述滑动质量块中心布置有质量块滑动通孔，所述滑动质量块通过质量块滑动通孔与压电振子配合，系统利用回转运动发电，在转动速度发生变化时，滑动质量块沿着压电振子发生运动，引起系统刚度的变化，系统的共振频率随之变化使之具有更宽的共振频率范围，可提升压电发电效率。
The utility model relates to an adaptive piezoelectric power generation device, comprising: a piezoelectric vibrator, a base, a spring and a sliding mass block, wherein: one end of the piezoelectric vibrator is fixed on the base; the spring is arranged around the piezoelectric vibrator , one end is connected to the base, and the other end is connected to the sliding mass block; the center of the sliding mass block is arranged with a sliding through hole of the mass block, and the sliding mass block cooperates with the piezoelectric vibrator through the sliding through hole of the mass block, and the system utilizes the rotary motion For power generation, when the rotation speed changes, the sliding mass moves along the piezoelectric vibrator, causing a change in the stiffness of the system, and the resonance frequency of the system changes accordingly to make it have a wider resonance frequency range, which can improve the efficiency of piezoelectric power generation.
Description
Technical field
The utility model belongs to small-power power field, is specifically related to a kind of self adaptation piezoelectric generating device.
Background technology
Since piezoelectric finds, its power generation applications in specific occasion is ripe and extensively, comprises the strain testing device formed by the character that stress conversion is electric energy by it, all kinds of ignition device directly formed with clashing into piezoelectric generation transient high voltage and electronic fuse device, the piezoelectric cantilever beam deflection that utilizes piezoelectric ceramic to be formed generates electricity to supply the electronic power device etc. that all kinds of electronic device is formed.And piezoelectric cantilever is as the simplest piezo-electric generating structure of one, obtain research and apply widely, piezoelectric cantilever generally has two kinds of operating states for generating electricity, one is under being operated in anti-resonance frequency, cause piezoelectric ceramic to produce stress and strain by the distortion of its stressed generation and form generating capacity in conjunction with piezoelectric effect, another is under being operated in its resonance frequency, now changes mechanical energy is that the efficiency of electric energy significantly improves, but the dynamic excitation moment changes under the occasion that some are special, be not easy to realize piezoelectric cantilever to work under resonance state.The piezoelectric cantilever stressing conditions that the device doing gyration is installed is then more special, the natural frequency of piezoelectric cantilever can be changed by the design of special construction, adapt to extraneous gyration, the efficiency of such piezoelectric cantilever generators has obvious room for promotion.
Summary of the invention
Constant in order to solve the piezoelectric cantilever generators natural frequency be arranged at present on rotating mechanism, cantilever beam system cannot be kept under the moving condition of change to be in the low problem of generating efficiency caused by resonance state, propose a kind of self adaptation piezoelectric generating device, this piezoelectric cantilever is by piezoelectric vibrator, pedestal, spring and moving mass are formed, the pedestal of described self adaptation piezoelectric generating device is fixed on and does in the mechanism of gyration, gyration is utilized to generate electricity, when velocity of rotation changes, moving mass moves along piezoelectric vibrator, cause the change of system stiffness, the resonance frequency of system changes thereupon makes it to have wider resonance frequency range, piezo-electric generating efficiency can be promoted.
To achieve these goals, the utility model is by the following technical solutions:
A kind of self adaptation piezoelectric generating device of the utility model, comprises piezoelectric vibrator, pedestal, spring and moving mass, wherein:
Piezoelectric vibrator one end is fixed on pedestal; Described ring spring is arranged around piezoelectric vibrator, and one end is connected with pedestal, and the other end is connected with moving mass; Described moving mass center arrangement has mass slip through hole, and described moving mass is coordinated with piezoelectric vibrator by mass slip through hole.
Described piezoelectric vibrator can adopt and be pasted onto by a slice piezoelectric sheet material the single-chip piezoelectric vibrator that elastic base plate is formed, and also can adopt and be pasted onto by two panels piezoelectric sheet material the bi-morph piezo-electric oscillator that elastic base plate both sides are formed; Described piezoelectric sheet outer surface, is furnished with multiple electrode, and between electrode, cut-off rule direction is parallel to plane pedestal being furnished with oscillator installing hole.
During use, piezoelectric vibrator is arranged vertically on the direction tangentially vertical with gyration, pedestal is arranged in away from centre of gyration side simultaneously.During work, along with the increase of gyration speed, dynamic excitation frequency rises, moving mass moves along piezoelectric vibrator to pedestal direction under the influence of centrifugal force simultaneously, make the length reduction of piezoelectric vibrator between moving mass and pedestal, rigidity increase, the resonance frequency of Blast Furnace Top Gas Recovery Turbine Unit (TRT) rises, and the natural frequency achieving Blast Furnace Top Gas Recovery Turbine Unit (TRT) realizes the object of self-adaptative adjustment along with the change of gyration cycle and frequency.
Accompanying drawing explanation
Fig. 1 is a kind of self adaptation piezoelectric generating device of the utility model structural representation.
Fig. 2 is the schematic diagram of each part of the utility model and the relation of installation.
Embodiment
See figures.1.and.2, self adaptation piezoelectric generating device of the present utility model is made up of piezoelectric vibrator 1, pedestal 2, spring 3 and moving mass 4, wherein:
Piezoelectric vibrator 1 one end is by the oscillator installing hole 21 that is adhesively fixed on the base 2; Described spring 3 is arranged around piezoelectric vibrator 1, and one end is gluedd joint with pedestal 2 and is connected, and the other end glueds joint with moving mass 4 and is connected; Described moving mass 4 center arrangement has mass slip through hole 41, and described moving mass 4 is coordinated with piezoelectric vibrator 1 by mass slip through hole 41.
Described piezoelectric vibrator 1 adopts and is pasted onto by a slice piezoelectric sheet material 11 the single-chip piezoelectric vibrator that elastic base plate 12 is formed, described piezoelectric sheet material 11 outer surface, be furnished with the first electrode 131, second electrode 132 and third electrode 133, each interelectrode electrode cut-off rule is parallel to plane pedestal 2 being furnished with oscillator installing hole 21.
During use, piezoelectric vibrator 1 is arranged vertically on the direction tangentially vertical with gyration, pedestal 2 is arranged in away from centre of gyration side simultaneously, utilize pedestal installing hole 22 to fix.
Claims (3)
1. a self adaptation piezoelectric generating device, comprise: piezoelectric vibrator (1), pedestal (2), spring (3) and moving mass (4), wherein: described piezoelectric vibrator (1) one end is fixed on pedestal (2); Described spring (3) is arranged around piezoelectric vibrator (1), and one end is connected with pedestal (2), and the other end is connected with moving mass (4); Described moving mass (4) center arrangement has mass slip through hole (41), and described moving mass (4) is coordinated with piezoelectric vibrator (1) by the mass through hole (41) that slides.
2. self adaptation piezoelectric generating device according to claim 1, it is characterized in that: described piezoelectric vibrator (1) adopts and is pasted onto the upper single-chip piezoelectric vibrator formed of elastic base plate (12) by a slice piezoelectric sheet material (11), or be pasted onto by two panels piezoelectric sheet material (11) the bi-morph piezo-electric oscillator that elastic base plate (12) both sides are formed.
3. self adaptation piezoelectric generating device according to claim 1, it is characterized in that: piezoelectric sheet material (11) outer surface on described piezoelectric vibrator (1), be furnished with multiple electrode (13), between described electrode (13), cut-off rule is parallel to plane pedestal (2) being furnished with oscillator installing hole (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420583954.5U CN204119086U (en) | 2014-10-09 | 2014-10-09 | A kind of self adaptation piezoelectric generating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420583954.5U CN204119086U (en) | 2014-10-09 | 2014-10-09 | A kind of self adaptation piezoelectric generating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204119086U true CN204119086U (en) | 2015-01-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420583954.5U Expired - Fee Related CN204119086U (en) | 2014-10-09 | 2014-10-09 | A kind of self adaptation piezoelectric generating device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104242726A (en) * | 2014-10-09 | 2014-12-24 | 吉林大学 | Self-adaptive piezoelectric generator |
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2014
- 2014-10-09 CN CN201420583954.5U patent/CN204119086U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104242726A (en) * | 2014-10-09 | 2014-12-24 | 吉林大学 | Self-adaptive piezoelectric generator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150121 |
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| CF01 | Termination of patent right due to non-payment of annual fee |